现代食品科技2026，Vol.42Issue(4)：296-302,7.DOI:10.13982/j.mfst.1673-9078.2026.4.0219
基于ICP-MS法比较广西不同产地虫茶无机元素的差异
Analysis of Differences in Inorganic Elements of Insect Tea from Different Production Areas in Guangxi by Using the ICP-MS Method
摘要
Abstract
To investigate differences in the inorganic element content and safety of insect tea from various production areas in Guangxi,inductively coupled plasma mass spectrometry was used to determine the contents of 29 inorganic elements,such as potassium,calcium,and magnesium,in insect tea from five major production areas in Guangxi(i.e.,Sanjiang,Longsheng,Rong'an,Pingnan,and Wuzhou).Multiple statistical analyses were conducted,including variance analysis,Duncan's multiple range test,Pearson's correlation analysis,and principal component analysis(PCA),to analyze differences in the contents of inorganic elements in insect tea from different production areas.The results showed complex and diverse differences(P＜0.05)in the contents of various inorganic elements in insect tea from different production areas.Correlation analysis revealed that some elements in Guangxi insect tea were significantly or extremely significantly correlated.Specifically,extremely significant positive correlations(P＜0.01)were found between boron and potassium,calcium and titanium,and zinc and sodium.Significant positive correlations(P＜0.05)were found between calcium and strontium,aluminum and copper,manganese and nickel,strontium and titanium,barium and boron,as well as barium and strontium.In contrast,significant negative correlations(P＜0.05)were observed between magnesium and barium as well as magnesium and strontium.Through PCA,three principal components were extracted,with a cumulative variance contribution rate of 93.26％.Multiple elements,including potassium and calcium,were determined to be the main characteristic elements contributing to the differences in the composition of inorganic elements in insect tea from different production areas.Based on the principal component score plot,five major production areas of insect tea were effectively distinguished.In terms of safety assessment,although the contents of heavy metals in the insect tea samples were not found to exceed the standards for tea,the contents of lead and chromium in insect tea from the Sanjiang production area were relatively high.These results provide a theoretical basis and data support for the origin identification,quality evaluation,and quality control of insect tea in Guangxi.关键词
广西虫茶/无机元素/电感耦合等离子体质谱法/统计分析Key words
Guangxi insect tea/inorganic elements/inductively coupled plasma mass spectrometry/statistical analysis引用本文复制引用
缪璐,雷向荣,温立香..基于ICP-MS法比较广西不同产地虫茶无机元素的差异[J].现代食品科技,2026,42(4):296-302,7.基金项目
广西科技厅重点研发项目(桂科AB24010126) （桂科AB24010126）
国家现代农业产业体系广西茶叶创新团队建设专项(nycytxgxcxtd-2024-18-07) （nycytxgxcxtd-2024-18-07）
